要怎么打开这个 x Symbol: CLKDEV_LOOKUP [=n] x x Type : bool x x Defined at drivers/clk/Kconfig:2 x x Selects: HAVE_CLK [=n] x x Selected by [n]: x x - COMMON_CLK [=n]
时间: 2024-02-10 14:27:25 浏览: 168
要打开 `CLKDEV_LOOKUP` 符号,你需要按照以下步骤进行操作:
1. 进入 Linux 内核源代码目录。
2. 打开 `drivers/clk/Kconfig` 文件。
3. 在文件中搜索 `CLKDEV_LOOKUP`。
4. 确保该符号的配置行类似于以下格式:
```
config CLKDEV_LOOKUP
bool "Symbol: CLKDEV_LOOKUP"
default n
depends on HAVE_CLK
help
[...]
```
5. 将 `default n` 行修改为 `default y`,将符号的默认值从 "n" 改为 "y"。
6. 保存文件并退出编辑器。
接下来,你可以继续进行内核的编译和安装,以使修改后的配置生效。请注意,此更改可能会影响其他相关的配置选项,你可能需要根据需要进行适当的调整和配置。
请注意,以上步骤涉及到 Linux 内核的配置和编译过程,因此需要一定的基础知识和经验。确保在进行任何更改之前备份重要的文件,并仔细阅读相关文档和资源,以确保正确地进行配置和编译。
相关问题
分析 x Symbol: SND_SOC_ROCKCHIP_I2S [=n] x x Type : tristate x x Prompt: Rockchip I2S Device Driver x x Location: x x -> Device Drivers x x -> Sound card support (SOUND [=y]) x x -> Advanced Linux Sound Architecture (SND [=y]) x x (6) -> ALSA for SoC audio support (SND_SOC [=y]) x x -> ASoC support for Rockchip (SND_SOC_ROCKCHIP [=n]) x x Defined at sound/soc/rockchip/Kconfig:18 x x Depends on: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && CLKDEV_LOOKUP [=y] && SND_SOC_ROCKCHIP [=n] x x Selects: SND_SOC_GENERIC_DMAENGINE_PCM [=n] x x Selected by [n]: x x - SND_SOC_ROCKCHIP_MAX98090 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y] x x - SND_SOC_ROCKCHIP_RT5645 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y] x x - SND_SOC_ROCKCHIP_RT5651 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y] x x - SND_SOC_ROCKCHIP_RT5651_RK628 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y] x x - SND_SOC_RK3288_HDMI_ANALOG [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y] x x - SND_SOC_RK3399_GRU_SOUND [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y] && SPI [=y] x
根据你提供的配置信息,我们可以对 `SND_SOC_ROCKCHIP_I2S` 进行分析:
- 类型:`tristate`,表示可以选择编译为模块或直接编译到内核中。
- 提示:Rockchip I2S设备驱动程序。
- 位置:
- `Device Drivers`
- `Sound card support (SOUND)`
- `Advanced Linux Sound Architecture (SND)`
- `ALSA for SoC audio support (SND_SOC)`
- `ASoC support for Rockchip (SND_SOC_ROCKCHIP)`
- 定义位置:在 `sound/soc/rockchip/Kconfig` 文件的第 18 行定义。
- 依赖条件:
- `SOUND [=y]`:需要启用声卡支持。
- `!UML`:不适用于用户模式Linux(User-Mode Linux,UML)。
- `SND [=y]`:需要启用高级Linux声音架构。
- `SND_SOC [=y]`:需要启用ALSA SoC音频支持。
- `CLKDEV_LOOKUP [=y]`:需要启用时钟设备查找。
- `SND_SOC_ROCKCHIP [=n]`:需要禁用Rockchip ASoC支持。
- 选择条件:
- `SND_SOC_GENERIC_DMAENGINE_PCM [=n]`:选择了该符号。
- 被以下条件选择:
- `SND_SOC_ROCKCHIP_MAX98090 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y]`
- `SND_SOC_ROCKCHIP_RT5645 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y]`
- `SND_SOC_ROCKCHIP_RT5651 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y]`
- `SND_SOC_ROCKCHIP_RT5651_RK628 [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y]`
- `SND_SOC_RK3288_HDMI_ANALOG [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y]`
- `SND_SOC_RK3399_GRU_SOUND [=n] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_ROCKCHIP [=n] && I2C [=y] && GPIOLIB [=y] && CLKDEV_LOOKUP [=y] && SPI [=y]`
根据依赖条件和选择条件,`SND_SOC_ROCKCHIP_I2S` 符号需要满足一些其他条件才能启用。你需要确保在编译内核时满足这些条件,以使该符号可用。
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